package cn.kgc.ywz.smbms.web.web;

import cn.kgc.ywz.smbms.web.entity.Constant;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CheckUserLonginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        System.out.println("httpServletRequest = " + httpServletRequest.getServletPath());
        Object user = httpServletRequest.getSession().getAttribute(Constant.USER);
        if (user == null){ //没有登录
            //获取toLogin的绝对路径
            String path = httpServletRequest.getScheme() + "://" + httpServletRequest.getServerName()
                    + ":" + httpServletRequest.getServerPort() + httpServletRequest.getContextPath() + "/toLogin";
            System.out.println("path = " + path);
            httpServletResponse.sendRedirect(path);
            return false;
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
